558595 A7 B7 五、發明説明（1 ) 【發明的領.域】 (請先閲讀背面之注意事項再填寫本頁) 本發明是關於在具備有從頭管向後下方延伸的主框架 的車體框架，是懸架著使氣缸軸線前傾而配置於上述主框 架的下方的引擎，在上述引擎的上方配置有含有空氣濾淸 器及化油器的進氣裝置之機車，特別是關於排氣用二次空 氣控制閥的配置構造的改良。 【技術背景】 以往配置有二次空氣控制閥的構造，例如在日本特開 2000 — 320326號公報中所揭示的，在從主框架 向後方延伸的座墊導軌所支承的乘車用座墊的下方，是配 置有用來控制對配置於主框架的下方的引擎進行排氣用二 次空氣的供給的二次空氣控制閥的構造。 在上述傳統的構造中，雖然藉由讓引擎的氣缸軸 線前傾而在主框架及引擎之間有多餘的空間，可是二次空 氣控制閥是配置在引擎的更後方側，則連結二次空氣控制 閥及引擎之間的二次空氣供給管路會變得很長。 經濟部智慧財產局8工消費合作社印製 本發明鑑於這種情形，其目的要提供一種機車之 排氣用二次空氣控制閥的配置裝置，能有效地利用主框架 及引擎之間的空間來配置二次空氣控制閥，來讓二次空氣 供給管路縮短化。 【發明揭示】 爲了達成上述目的，本發明的第一特徵爲：在具備有 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -4 - 558595 A7 B7 五、發明説明（2 ) 從頭管向後下方延伸的主框架的車體框架，是懸架著使氣 缸軸線前傾而配置於上述主框架的下方的引擎，在上述引 擎的上方配置有含有空氣濾淸器及化油器的進氣裝置之機 車，用來控制對上述引擎的排氣孔進行排氣用二次空氣的 供給的二次空氣控制閥，是配置在：安裝於上述引擎的上 部的起動馬達及上述化油器之間，且在上述引擎與主框架 之間。 藉由這種第一特徵的構造，在氣缸軸線前傾的引擎及 主框架之間、以及配置於引擎上方的進氣裝置的化油器與 安裝於引擎的上部的起動馬達之間的空間，能夠有效地配 置二次空氣控制閥。並且由於是把二次空氣控制閥配置在 引擎的附近，所以可以把連結於二次空氣控制閥及引擎之 間的二次空氣供給管路縮短化。 本發明除了上述第一特徵的構造之外，第二特徵爲： 在上述二次空氣控制閥其上流側所連接的二次空氣濾淸器 ，是隔著通過上述主框架的寬度方向中心的中心線而配置 在與上述化油器相反側的位置，藉由這種構造，是將化油 器及二次空氣濾淸器配置在偏離於車體框架的寬度方向的 位置，所以可以有效地將化油器與二次空氣濾淸器配置在 引擎及主框架之間的狹小的空間。 本發明除了上述第一特徵的構造之外，第三特徵爲： 連結於上述二次空氣控制閥及上述引擎的排氣孔之間的二 次空氣供給管路的大部分，是隔著通過上述主框架的寬度 方向中心的中心線而配置在與上述化油器相反側的位置， 本紙張尺度適用中國國家標準（CNS ) Α4規格（210Χ297公釐〉 ------：--衣-- (請先閲讀背面之注意事項再填寫本頁)558595 A7 B7 V. Description of the invention (1) [Field of invention] (Please read the notes on the back before filling out this page) The present invention relates to a vehicle body frame provided with a main frame extending from the head pipe to the lower back. It is a locomotive with an engine that is suspended below the main frame with the cylinder axis tilted forward, and an air intake device including an air filter and a carburetor is disposed above the engine, and particularly the secondary exhaust Improvement of the configuration of the air control valve. [Technical Background] A structure in which a secondary air control valve is conventionally arranged, as disclosed in, for example, Japanese Patent Laid-Open No. 2000-320326, a seat cushion for a vehicle is supported by a seat cushion rail extending rearward from a main frame. The lower part has a structure in which a secondary air control valve for controlling the supply of exhaust air for an engine disposed below the main frame is arranged. In the above-mentioned conventional structure, although the cylinder axis of the engine is tilted forward, there is extra space between the main frame and the engine, but the secondary air control valve is arranged on the rear side of the engine to connect the secondary air. The secondary air supply line between the control valve and the engine becomes very long. The present invention is printed by the Industrial Property Cooperative Cooperative of the Ministry of Economic Affairs. In view of this situation, its purpose is to provide a device for arranging secondary air control valves for locomotive exhaust, which can effectively use the space between the main frame and the engine to The secondary air control valve is configured to shorten the secondary air supply line. [Disclosure of the invention] In order to achieve the above object, the first feature of the present invention is: Applicable to the Chinese paper standard (CNS) A4 specification (210X297 mm) -4-558595 A7 B7 when equipped with this paper size The body frame of the main frame extending rearward and downward from the head pipe is an engine that is suspended below the main frame with the cylinder axis tilted forward, and an inlet including an air filter and a carburetor is disposed above the engine. The locomotive of the air device is a secondary air control valve for controlling the supply of exhaust air to the exhaust hole of the engine. The secondary air control valve is arranged on a starter motor mounted on the upper part of the engine and a part of the carburetor. Between the engine and the main frame. With this first characteristic structure, the space between the engine and main frame leaning forward of the cylinder axis, and the space between the carburetor of the air intake device arranged above the engine and the starter motor mounted on the upper part of the engine, Can effectively configure the secondary air control valve. Furthermore, since the secondary air control valve is arranged near the engine, the secondary air supply line connected between the secondary air control valve and the engine can be shortened. In addition to the structure of the first feature, the second feature of the present invention is that the secondary air filter connected to the upstream side of the secondary air control valve is a center that passes through the center of the width direction of the main frame. The carburetor and the secondary air filter are arranged at positions deviating from the width direction of the body frame by this structure. The carburetor and secondary air filter are placed in a small space between the engine and the main frame. In addition to the structure of the first feature, the third feature of the present invention is that most of the secondary air supply line connected between the secondary air control valve and the exhaust hole of the engine passes through the above. The center line of the width direction center of the main frame is arranged on the opposite side of the above carburetor. This paper size applies the Chinese National Standard (CNS) A4 specification (210 × 297 mm) ------: --- -(Please read the notes on the back before filling this page)
、1T 經濟部智慧財產局員工消費合作社印製 -5- 558595 A7 B7 五、發明説明（3 ) 藉由這種構造，就可以精簡地將化油器及二次空氣供給管 路配置靠近於主框架側。 ------：—衣— (請先閲讀背面之注意事項再填寫本頁) 【發明實施型態】 首先在第1圖中，該機車的車體框架F，是具備有： 可轉向地支承前叉1 1的頭管1 2、從頭管1 2向後下方 延伸的主框架1 3、以及連接設置於該主框架1 3的後部 而朝後上方延伸的左右的一對後框架1 4 ··，在前叉1 1的下端是可旋轉地軸支承著前輪WF，在前叉1 1的上 端是連結著轉向車把1 5。 合倂參照第2圖及第3圖，在主框架1 3的中間部兩 側面，是分別固定安裝有懸掛板1 6 ··，而在主框架1 3的後部兩側面是固定安裝有樞軸板1 7。 在主框架1 3的下方，是配置有使氣缸軸線C 1前傾 的引擎E，該引擎E，是被上述懸掛板1 6 .........及樞軸 板1 7所支承而被懸架在車體框架F。而在引擎E的兩側 是設置有用來承載駕駿者的腳部的踏腳架1 8。 經濟部智慧財產局員工消費合作社印製 在樞軸板1 7是設置有圓筒狀的支軸2 0，在該支軸 2 0的兩端部是可上下擺動地支承著左右的一對後叉2 1 .........的前端部，在兩後叉2 1 .........的後端之間是軸支 承著後輪W R。 後輪W R的上方是以安裝於後框架1 4 .........的後擋 泥板2 4所覆蓋，在該後擋泥板2 4的上方，是配置有以 後框架1 4 .........所支承的油箱2 5。而乘車用座墊也就 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -6 - 558595 A7 B7 五、發明説明（4 ) 是雙人式坐墊2 6是配置成覆蓋著油箱2 5，在後框架 14 .........及兩後叉2 1 .........之間是分別設置有後避震 (請先閲讀背面之注意事項再填寫本頁) 單元2 7 .......... 車體框架F是以合成樹脂製的車體車殼3 〇所覆蓋， 該車體車殻3 0，是具備有：覆蓋主框架1 3的兩側邊的 左右的一對主框架側車殼3 1 ..........從前方覆蓋搭乘者 的腳部而鎖裝於兩主框架側車殼3 1 .........的前部的左右 的一對腿部護罩3 2 ..........從前方側覆蓋頭管1 2而連 接於兩腿部護罩3 2 .........的前上車殼3 3、從後方側覆 蓋頭管1 2且從上方側覆蓋主框架1 3而連接於前上車殻 3 3的上車殻3 4、連接於兩主框架側車殼3 1 .........的 下部的下車殼3 5、以及從兩側邊覆蓋油箱2 5的大部分 與車體框架F的後部的左右的一對後側車殻3 6 .......... 合倂參照第4圖，在引擎E的上方，是配置有包含空 氣濾淸器37、化油器38、及進氣管39的進氣裝置 4 0° 經濟部智慧財產局8工消費合作社印製 在空氣濾淸器3 7的上部，是一體地設置有從兩側夾 著主框架1 3的一對安裝板部3 7 a、3 7 a，兩安裝板 部37a、37a是藉由螺栓41、41而被鎖裝於主框 架1 3的兩側面。也就是說空氣濾淸器3 7是被固定在主 框架1 3。 配置於引擎E的氣缸頭4 2的上方的化油器3 8的上 流端，是直接連接到空氣濾淸器3 7，其上流端連接在化 油器3 8的下流端的進氣管3 9，是彎曲形成爲略C字型 本紙張尺度適用中國國家標準（CNS ) A4規^ ( 210X297公釐） 558595 A7 B7 五、發明説明（5 ) ，是作成連接於配置在氣缸頭4 2的上部的進氣孔4 3， 來讓進氣管3 9的下流端連接到氣缸頭4 2的上部側壁部 〇 (請先閱讀背面之注意事項再填寫本頁) 在氣缸頭4 2的下部側壁部，是連接著排氣管4 5的 上流端，該排氣管4 5是連接於配置在該氣缸頭4 2的下 部的排氣孔4 4。該排氣管4 5，是從氣缸頭4 2向後方 延伸出去，連接到配置於後輪W R的右側的滅音器4 6 (參 照第1圖）。 在上述引擎的氣缸頭4 2的排氣孔4 4，是供給著排 氣用的二次空氣，用來控制該二次空氣對排氣孔4 4的供 給的二次空氣控制閥4 8，是配置在安裝於引擎E的曲軸 箱4 9的上部的起動馬達5 0與上述化油器3 8之間且在 上述引擎E與主框架1 3之間。 在第5圖，二次空氣控制閥4 8，是以：膜片式致動 器5 2、以該膜片式致動器5 2來進行閉閥驅動的開閉閥 5 3、以及僅允許引擎E的朝排氣口 4 4側的空氣流動的 簧片閥5 4所構成。 經濟部智慧財產局員工消費合作社印製 膜片式致動器52，是具備有：殻體55、在該殼體 5 5被夾持著周緣部的膜片5 6、以及其中一端被連結在 該膜片5 6的中央部的金屬製的桿部5 7。 殼體5 5是由：主體5 8、與相互間氣密性地夾持上 述膜片5 6的周緣部且鎖裝於該主體5 8的外殼5 9所構 成，在外殻5 9及膜片5 6之間是形成有面對於該膜片 5 6的其中一面的負壓室，在主體5 8及膜片5 6之間形 本紙張尺度適用中國國家標準（CNS ) A4規格（210X29?公釐） -8 - 558595 A7 B7 五、發明説明（6 ) (請先閱讀背面之注意事項再填寫本頁) 成有大氣壓室6 1。在外殼5 9的中央部，連接設置有在 前端具有節流孔6 2的連接管部6 3，經由上述節流孔 6 2來把通到負壓室6 0內的負壓取出管路6 4連接到連 接管部63，該負壓取出管路64，如第3圖所示’是被 連接到進氣裝置4 0的進氣管3 9。藉此讓進氣管3 9內 的負壓在負壓室6 0產生作用。 桿部5 7，是藉由主體5 8而被支承爲可朝軸方向移 動，該桿部5 7的其中一端，是在大氣壓室6 1側被直接 連結到上述膜片5 6的中央部。 在這種膜片式致動器5 2，當進氣管3 9內的負壓變 高時，膜片會朝向減少負壓室6 0的容積的方向撓曲，桿 部5 7會朝第5圖的上方作動。 開閉閥53，是具備有：閥殼體67、固定安裝在上 述桿體5 7的另一端的閥體6 8、以及設置在閥殻體6 7 與閥體6 8之間的回復彈簧6 9。 經濟部智慧財產局員工消費合作社印製 閥殼體6 7，是以：上述主體5 8、及氣密性地鎖裝 於該主體5 8的吸力外殼7 0所構成，在主體5 8，是設 置有：空氣流通路7 1、使空氣流通路7 1連通到大氣壓 室6 1的連通孔7 2、通到空氣流通路7 1的上流端而配 置成與上述桿部5 7同軸的閥孔7 3、在與上述空氣流通 路7 1相反側而使上述閥孔7 3開口於中央部的閥座7 4 、以及將其中一部分同軸地插入到上述閥孔7 3的支承筒 部7 5，而同軸地貫穿閥孔7 3的桿部5 7，是可朝軸方 向滑動地被嵌合在上述支承筒部7 5內。在上述主體5 8 -9- 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 558595 A7 B7_ _ 五、發明説明（7 ) (請先閱讀背面之注意事項再填寫本頁) 及吸力外殻7 0之間形成了閥室7 6。而在吸力外殼7 0 是一體地形成有通到閥室7 6的連接管部7 7，管路7 8 的下流端是連接到連接管7 7。管路7 8的上流端是連接 到二次空氣濾淸器7 9，且連接於二次空氣濾淸器7 9的 上流端的空氣導入管路8 0，是沿著主框架1 3朝前方延 伸設置到頭管1 2的附近。並且二次空氣濾淸器，是隔著 通過主框架1 3的寬度方向中心的中心線C 2而配置在化 油器3 8的相反側。 上述閥座7 4是面對於該閥室7 6地形成於主體5 8 ，可安置定位於閥座7 4的收容於閥室7 6的閥體6 8是 固定設置在桿部5 7的另一端。 而回復彈簧6 9，是圍繞於上述支承筒部7 5的線圈 狀的構件，是設置在主體5 8及閥體6 8之間，用來發揮 出讓閥體6 8從閥座7 4離開的方向的彈力，也就是使膜 片式致動器5 2的膜片5 6朝大氣壓室6 1側撓曲方向的 彈力。 經濟部智慧財產局員工消費合作社印製 簧片閥5 4，是在中央部具有閥孔8 1而可讓上述閥 孔8 1開閉地被支承在形成爲圓板狀的閥支承板8 2的構 造，閥支承板8 2，是作成用來使上述閥孔8 1連通到空 氣流通路7 1的下流端，且是氣密性地被夾持在上述主體 5 8及鎖裝於該主體5 8的第三外殼8 3之間。而在第三 外殼8 3及閥支承板8 2之間形成了用來收容上述簧片閥 5 4的閥室8 4，在作成通到閥室8 4且一體地設置於第 三外殼8 3的連接管部8 5，是連接著二次空氣供給管路 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -10- 558595 A7 B7 五、發明説明（8 ) (請先閱讀背面之注意事項再填寫本頁) 8 6的上流端。而二次空氣供給管路8 6的下流端，是作 成通到引擎E的氣缸頭4 2的排氣孔4 4而連接到上述氣 缸頭4 2的下部。 二次空氣供給管路8 6的大部分，是隔著通過主框架 1 3的寬度方向中心的中心線C 2而配置在化油器3 8的 相反側。 這種二次空氣控制閥4 8，是固定在車體框架F的主 框架1 3。也就是說，在主框架1 3的側面是鎖裝有支架 8 7，從下方抵接於該支架8 7且一體地設置於主體5 8 的支承凸緣5 8 a，是鎖裝於上述支架8 7。 配置在雙人式座墊2 6的下方的油箱2 5、與配置於 該油箱2 5的前下方的化油器3 8，是以從油箱2 5朝前 下方延伸的燃料供給管路8 8而連接，在該燃料供給管路 8 8的中途部，是中介設置有以引擎E的進氣負壓作動的 負壓作動式的燃油閥9 0。 經濟部智慧財產局g(工消費合作社印製 在第6圖中，燃油閥90，是具備有：殻體9 1、在 該殻體9 1夾持著周緣部的膜片9 2、固定於該膜片9 2 的中央部的閥體9 3、以及設置於殻體9 1與膜片9 2之 間的回復彈簧9 4。 殼體9 1，是由：主體9 5、以及氣密性地將上述膜 片9 2的周緣部夾持在相互之間且鉚接結合於該主體9 5 的外殻9 6所構成，在外殻9 6及膜片9 2之間是形成有 面對於該膜片9 2的其中一面的負壓室9 7。並且在負壓 室9 7內在外殼9 6的內面部是抵接有彈簧承板9 8，回 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 558595 A7 B7 五、發明説明（9) 復彈簧9 4，是壓縮設置在膜片9 2與彈簧承板9 8之間 ，會發揮出使膜片9 2撓曲向使負壓室9 7的容積增加的 方向的彈力。 在外殼9 6，是一體地設置有通到負壓室9 7的連接 管部9 9，該連接管部9 9與進氣裝置4 0的進氣管3 9 之間，是以負壓取出管路1 0 0連接。也就是用來把進氣 管3 9內的負壓導入到負壓室9 7。 在上述膜片9 2與主體9 5之間，是形成有閥室 101，在主體95，是設置有：可用來將固定安裝於上 述膜片9 2的中央部的閥體9 3安置定位的閥座1 〇 2、 以及將下流端開口於閥座1 0 2的中央部的閥孔1 〇 3。 並且燃料供給管路8 8中的連結著油箱2 5與燃油閥9 0 之間的管路部分8 8 a是通到閥孔1 〇 3而被連接到主體 9 5，上述燃料管路8 8中的連結化油器3 8及燃油閥 9 0之間的管路部分8 8 b會通到上述閥室1 〇 1而被連 接到主體9 5。 在進氣管3 9，是一體地設置有伸出於燃油閥9 0側 的安裝支架3 9 a，在鎖裝於該安裝支架3 9 a的支承板 1 0 4，是鎖裝有一體地設置於上述燃油閥9 0的主體 9 5的凸緣部9 5 a。也就是說燃油閥9 0是安裝於進氣 管3 9。在安裝於進氣管3 9的狀態，燃油閥9 0是在主 框架1 3的下方被配置於二次空氣控制閥4 8的側邊，是 隔著主框架1 3配置在化油器3 8的相反側。 用來將排出空氣導引到化油器3 8的排出空氣供給管 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） (請先閱讀背面之注意事項再填寫本頁) 訂· 經濟部智慈財產局員工消費合作社印製 -12- 558595 A7 ____B7_ 五、發明説明（1〇) (請先閱讀背面之注意事項再填寫本頁) 路1 0 5，是設置在空氣濾淸器3 7及化油器3 8之間， 在該排出空氣供給管路1 〇 5的中途部，是設置有配置在 上述二次空氣濾淸器7 9的上方的排出空氣用空氣濾淸器 10 6° 接下來針對該實施例的作用來加以說明，用來控制使 氣缸軸線C 1前傾且配置於主框架1 3的下方的引擎E對 排氣孔4 4的排氣用二次空氣的供給的二次空氣控制閥 4 8，是配置在：配置於引擎E的上方的進氣裝置4 0的 化油器3 8、與安裝於引擎E的上部的起動馬達5 0之間 ，且配置在引擎E及主框架1 3之間。 於是，在使氣缸軸線C 1前傾的引擎E及主框架1 3 之間、與在化油器3 8與起動馬達5 0之間所產生的空間 ，可以有效地配置二次空氣控制閥4 8。且由於二次空氣 控制閥4 8是配置在引擎E的附近，所以可以將連結於二 次空氣控制閥4 8及引擎E的排氣孔4 4之間的二次空氣 供給管路8 6縮短化。 經濟部智慧財產笱員工消費合作社印製 在二次空氣控制閥4 8其上流側所連接的二次空氣濾 淸器7 9，是隔著通過主框架1 3的寬度方向中心的中心 線C 2而配置在化油器3 8的相反側，是將化油器3 8及 二次空氣濾淸器7 9配置在偏離於車體框架F的寬度方向 的位置，就可以將化油器3 8及二次空氣濾淸器7 9有效 地配置在引擎E及主框架1 3之間的狹窄的空間。 並且由於二次空氣供給管路8 6的大部分，是隔著通 過主框架1 3的寬度方向中心的中心線C 2而配置在化油 本紙張尺度適用中國國家標準（CNS ) A4規格（210X29*7公釐） -13- 558595 經濟部智慧財產苟員工消費合作社印製 A7 B7五、發明説明（11) 器3 8的相反側，所以可以精簡地將化油器3 8及二次空 氣供給管路8 6配置靠近主框架1 3側。 並且，在朝向化油器4 8的燃料供給管路8 8的中途 部所中介設置的負壓作動式的燃油閥9 0，是在主框架 1 3的下方被配置在二次空氣控制閥4 8的側邊，是把燃 油閥9 0配置在化油器3 8及起動馬達5 0之間所配置的 二次空氣控制閥4 8的側邊，所以可以使燃油閥9 0接近 於化油器3 8，所以可以縮短從進氣裝置4 0將負壓導引 到燃油閥9 0的負壓取出管路1 0 0。 由於燃油閥9 0是隔著主框架1 3配置在化油器3 8 的相反側，所以可以容易地進行燃料供給管路8 8及負壓 取出管路100的管路配置。 由於在從油箱2 5朝前下方延伸且連接於化油器3 8 的燃料供給管路8 8的中途部中介設置有燃油閥9 0，所 以即使伴隨著來自於油箱2 5的燃料供給停止而空氣混入 到燃料供給管路8 8中連結於化油器3 8及燃油閥9 0之 間的管路部分8 8 b，在之後進行供油時，即使省略進行 從該管路部分8 8 b抽氣的作業，也可以迅速地將燃料充 滿管路部分8 8 b，而不需要用來排氣的溢流閥等的零件 而可以減低零件數量，可以迅速地將燃料供給到化油器 3 8° 燃油閥9 0，是安裝在進氣裝置4 0的進氣管3 9， 所以與將燃油閥9 0安裝在油箱2 5的構造相比，可以增 大燃油閥9 0的配置上的自由度。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） (請先閲讀背面之注意事項再填寫本頁) 衣. 訂. d -14 - 558595 A7 _B7 五、發明説明（12) ------,—衣— (請先閱讀背面之注意事項再填寫本頁) 以上是說明本發明的實施例，本發明並不限定於上述 實施例，只要不脫離專利申請的本發明則可以進行種種的 設計變更。 【圖面說明】 第1圖是機車的側面圖。 第2圖是引擎附近的機車的左側面圖。 第3圖是引擎附近的機車的右側面圖。 第4圖是省略主框架的狀態的第2圖的端視圖。 第5圖是第3圖的5 — 5線放大剖面圖。 第6圖是第2圖的6 — 6線放大剖面圖。 【圖號說明】 經濟部智慧財產局員工消費合作社印製 E :引擎 F :車體框架 W F :前輪 W R :後輪 1 1 :前叉 1 2 :頭管 1 3 :主框架 1 4 :後框架 1 5 :轉向車把 1 6 :懸掛板 1 7 :樞軸板 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -15- 558595 經濟部智慈財產局員工消費合作社印製 A7 B7五、發明説明（13) 1 8 :踏腳架 2 0 :支軸 2 1 :後叉 2 4 :後擋泥板 2 5 :油箱 2 6 :雙人式坐墊 2 7 :後避震單元 3 0 :車體車殼 3 7 :空氣濾淸器 3 8 :化油器 3 9 :進氣管 4 0 :進氣裝置 4 2 :氣缸頭 4 4 :排氣孔 4 6 :滅音器 4 8 :二次空氣控制閥4 9 :曲軸箱 5 0 :起動馬達 5 2 :膜片式致動器 5 3 :開閉閥 5 4 :簧片閥 5 5 :殼體 5 6 :膜片 5 7 :桿部 (請先閱讀背面之注意事項再填寫本頁) 衣.Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs -5- 558595 A7 B7 V. Description of the invention (3) With this structure, the carburetor and the secondary air supply pipeline can be simplified and arranged close to the main Frame side. ------ ： — 衣 — (Please read the precautions on the back before filling out this page) [Invention Implementation Mode] First, in Figure 1, the body frame F of the locomotive is equipped with: The head pipe 1 supporting the front fork 1 1 is grounded. 2. The main frame 1 extends rearward and downward from the head pipe 1 2. 3. The left and right pair of rear frames 1 4 are connected to the rear portion of the main frame 13 and extend upward and rearward. The front wheel WF is rotatably supported on the lower end of the front fork 11 and the steering handle 15 is connected to the upper end of the front fork 11. With reference to Figs. 2 and 3, suspension plates 1 6 are fixedly installed on both sides of the middle portion of the main frame 13, and pivots are fixedly installed on both sides of the rear portion of the main frame 13. Board 1 7. Below the main frame 13 is an engine E arranged to tilt the cylinder axis C 1 forward. The engine E is supported by the suspension plates 16 and the pivot plate 17 described above. Instead, it is suspended in the body frame F. On both sides of the engine E, steppers 18 for supporting the feet of the rider are provided. The consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs printed on the pivot plate 17 is provided with a cylindrical support shaft 20. At both ends of the support shaft 20, a pair of left and right swinging supports are supported. The front ends of the forks 2 1 ......... support the rear wheel WR between the rear ends of the two rear forks 2 1 .... The upper part of the rear wheel WR is covered with a rear fender 2 4 attached to the rear frame 1 4.... ......... supported fuel tank 2 5. The seat cushions for passenger cars also apply the Chinese National Standard (CNS) A4 specifications (210X297 mm) for this paper size. -6-558595 A7 B7 5. Description of the invention (4) is a double seat cushion 2 6 is configured to cover the fuel tank 2 5. There are rear suspensions between the rear frame 14 ......... and the two rear forks 2 1 ......... (Please read the precautions on the back before filling (This page) Unit 2 7 .......... The body frame F is covered with a synthetic resin body shell 3 0. The body shell 30 is provided with: covering the main frame 1 A pair of left and right main frame side car shells 3 1 on both sides of 1 3 .... are covered on the passenger's feet from the front and locked to the two main frame side car shells 3 1... .... A pair of left and right leg shields 3 2 at the front part of the front ... are connected to the two leg shields 3 2 by covering the head tube 1 2 from the front side. ........ Front upper car shell 3 3. Cover head pipe 12 from rear side and main frame 1 3 from upper side and upper car shell 3 connected to front upper car shell 3 3. Connect The lower car shells 3 5 on the lower side of the two main frame side car shells 3 1 ..., and most of the fuel tanks 2 5 and the car body frame are covered from both sides. A pair of left and right rear side shells 3 6 at the rear of the F. Refer to FIG. 4. Above the engine E, an air filter 37 and a carburetor are disposed. 38, and the air intake device 40 of the air intake pipe 39 ° Printed on the upper part of the air filter 37 by the 8th Industrial Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, is integrally provided with the main frame 1 3 sandwiched from both sides The pair of mounting plate portions 3 7 a and 3 7 a, and the two mounting plate portions 37 a and 37 a are locked to both side surfaces of the main frame 13 by bolts 41 and 41. That is, the air filter 37 is fixed to the main frame 1 3. The upstream end of the carburetor 3 8 disposed above the cylinder head 4 2 of the engine E is directly connected to the air filter 37, and the upstream end is connected to the intake pipe 3 9 of the downstream end of the carburetor 3 8. It is bent and formed into a slightly C-shape. The paper size is applicable to the Chinese National Standard (CNS) A4 regulations ^ (210X297 mm) 558595 A7 B7 V. Description of the invention (5) is made to be connected to the upper part of the cylinder head 4 2 Inlet hole 4 3, so that the downstream end of the intake pipe 39 is connected to the upper side of the cylinder head 4 2 (Please read the precautions on the back before filling this page) In the lower side of the cylinder head 4 2 Is an upstream end connected to an exhaust pipe 45, which is connected to an exhaust hole 44 arranged in a lower portion of the cylinder head 42. The exhaust pipe 45 extends rearward from the cylinder head 42 and is connected to a muffler 4 6 (see Fig. 1) arranged on the right side of the rear wheel W R. The exhaust hole 44 of the cylinder head 4 2 of the engine is a secondary air control valve 48 that supplies secondary air for exhaust and controls the supply of the secondary air to the exhaust hole 44. It is arranged between the starter motor 50 and the carburetor 38, and between the engine E and the main frame 13, which are arranged on the upper part of the crank case 49 of the engine E. In FIG. 5, the secondary air control valve 48 is a diaphragm actuator 5 2. The diaphragm actuator 5 2 is an on-off valve 5 for closing and driving the valve 3, and only the engine is allowed. The reed valve 54 is configured by air flowing toward the exhaust port 44 side. The diaphragm actuator 52, which is printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, includes a housing 55, a diaphragm 56 having a peripheral portion sandwiched between the housing 55, and one end of which is connected to This diaphragm 5 6 has a metal rod portion 57 at a center portion. The case 5 5 is composed of a main body 5 8 and a case 5 9 that holds the periphery of the diaphragm 5 6 in an air-tight manner and is locked to the main body 5 8. The case 5 9 and the diaphragm are Between 5 and 6 is a negative pressure chamber formed with one side of the diaphragm 5 6 between the main body 5 8 and the diaphragm 5 6. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X29? (Central) -8-558595 A7 B7 V. Description of the invention (6) (Please read the notes on the back before filling this page) There is an atmospheric pressure chamber 6 1. A connection pipe portion 63 having a throttle hole 62 at the front end is connected to a central portion of the housing 59, and a negative pressure extraction pipe 6 passing into the negative pressure chamber 60 is connected through the throttle hole 62. 4 is connected to the connection pipe portion 63, and the negative pressure take-out pipe 64 is, as shown in FIG. 3, 'an intake pipe 39 connected to the air intake device 40. This allows the negative pressure in the intake pipe 39 to act in the negative pressure chamber 60. The rod portion 57 is supported by the main body 58 so as to be movable in the axial direction. One end of the rod portion 57 is directly connected to the central portion of the diaphragm 56 at the atmospheric pressure chamber 61 side. In this type of diaphragm actuator 52, when the negative pressure in the intake pipe 39 becomes high, the diaphragm will flex toward the direction of reducing the volume of the negative pressure chamber 60, and the rod portion 57 will face the first 5 Act on the top of the figure. The on-off valve 53 includes a valve housing 67, a valve body 6 8 fixedly mounted on the other end of the rod body 5 7 and a return spring 6 9 provided between the valve housing 6 7 and the valve body 6 8. . The valve housing 67 printed by the employee's consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs is composed of the above-mentioned main body 5 8 and a suction casing 70 which is air-tightly locked to the main body 5 8. It is provided with an air flow path 7 1. A communication hole 7 that communicates the air flow path 7 1 to the atmospheric pressure chamber 6 1 2. A valve hole that is connected to the upstream end of the air flow path 7 1 and is coaxial with the rod portion 5 7 7 3. A valve seat 7 4 that opens the valve hole 7 3 in the center on the side opposite to the air flow path 7 1, and a support tube portion 7 5 that coaxially inserts a part of the valve hole 7 3 into the valve hole 7 3. On the other hand, the rod portion 5 7 coaxially penetrating the valve hole 7 3 is fitted in the support tube portion 7 5 so as to be slidable in the axial direction. In the above main body 5 8 -9- This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) 558595 A7 B7_ _ V. Description of the invention (7) (Please read the precautions on the back before filling this page) and A valve chamber 76 is formed between the suction casing 70. On the other hand, the suction casing 70 is integrally formed with a connection pipe portion 7 7 leading to the valve chamber 76, and the downstream end of the pipe 7 8 is connected to the connection pipe 7 7. The upstream end of the pipe 7 8 is connected to the secondary air filter 79 and the air introduction pipe 80 connected to the upstream side of the secondary air filter 7 9 extends forward along the main frame 13. Set to the vicinity of the head tube 1 2. The secondary air filter is disposed on the opposite side of the carburetor 38 with the center line C 2 passing through the center in the width direction of the main frame 13. The valve seat 7 4 is formed on the main body 5 8 so as to face the valve chamber 76, and the valve body 6 8 which can be housed in the valve seat 7 4 and accommodated in the valve chamber 7 6 is fixedly disposed on the stem portion 5 7. One end. The return spring 69 is a coil-shaped member surrounding the support tube portion 75, and is provided between the main body 58 and the valve body 68 to release the valve body 68 from the valve seat 74. The elastic force in the direction is the elastic force in the direction of bending the diaphragm 5 6 of the diaphragm actuator 5 2 toward the atmospheric pressure chamber 61 side. The reed valve 5 4 is printed by the employee's consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. The structure is such that the valve support plate 8 2 is formed so that the valve hole 8 1 communicates with the downstream end of the air flow path 7 1 and is air-tightly held between the main body 5 8 and locked to the main body 5. 8 between the third shell 8 3. A valve chamber 8 4 is formed between the third housing 8 3 and the valve support plate 8 2 to receive the reed valve 54. The valve housing 8 4 is opened to the valve chamber 8 4 and is integrally provided in the third housing 8 3. The connecting pipe part 8 5 is connected to the secondary air supply pipe. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) -10- 558595 A7 B7 V. Description of the invention (8) (Please read first (Notes on the back, please fill out this page) 8 6 high-end. On the other hand, the downstream end of the secondary air supply line 86 is formed with an exhaust hole 44 opening to the cylinder head 42 of the engine E, and is connected to the lower portion of the cylinder head 42. Most of the secondary air supply line 86 is arranged on the opposite side of the carburetor 38 with the center line C 2 passing through the widthwise center of the main frame 13. The secondary air control valve 48 is a main frame 13 fixed to a vehicle body frame F. In other words, a bracket 8 7 is locked on the side of the main frame 13, and a supporting flange 5 8 a abutting on the bracket 8 7 from below and integrally provided on the main body 5 8 is locked on the bracket. 8 7. The fuel tank 2 5 disposed below the double seat cushion 26 and the carburetor 3 8 disposed below the front and bottom of the fuel tank 25 are fuel supply lines 8 8 extending from the fuel tank 25 to the front and bottom. Connected, in the middle of the fuel supply line 88, a negative pressure-operated fuel valve 90, which is operated by the negative pressure of the intake air of the engine E, is interposed. The Intellectual Property Bureau of the Ministry of Economic Affairs (printed in Figure 6 by the Industrial and Consumer Cooperatives), the fuel valve 90 is provided with a casing 9 1. The casing 9 1 sandwiches a peripheral membrane 9 2 and is fixed to The valve body 9 3 at the center of the diaphragm 9 2 and a return spring 9 4 provided between the housing 9 1 and the diaphragm 92 2. The housing 9 1 is composed of a main body 9 5 and air tightness. The outer edge portion of the diaphragm 92 is sandwiched between the outer edges of the main body 9 5 and sandwiched between the outer edges of the main body 9 5. A surface is formed between the outer shell 9 6 and the diaphragm 92. The negative pressure chamber 9 7 on one side of the sheet 9 2 and the inner surface of the outer shell 9 6 in the negative pressure chamber 9 7 is abutted with a spring bearing plate 9 8. The paper size applies the Chinese National Standard (CNS) A4 specifications. (210X297 mm) 558595 A7 B7 V. Description of the invention (9) The compound spring 9 4 is compressed and set between the diaphragm 9 2 and the spring bearing plate 9 8. It will exert the effect of flexing the diaphragm 9 2 to the negative side. The elastic force in the direction in which the volume of the pressure chamber 9 7 increases. The casing 9 6 is integrally provided with a connecting pipe portion 9 9 that leads to the negative pressure chamber 9 7. gas Between 3 and 9 is connected by the negative pressure take-out pipe 100. That is, it is used to introduce the negative pressure in the intake pipe 3 9 to the negative pressure chamber 9 7. Between the diaphragm 9 2 and the main body 95 A valve chamber 101 is formed in the main body 95, and a valve body 9 3 for positioning and positioning a valve body 9 3 fixedly mounted on a central portion of the diaphragm 92 is provided on the main body 95, and a downstream end is opened. A valve hole 1 03 in the center of the valve seat 102. The fuel supply line 8 8 is connected to the fuel tank 2 5 and the fuel valve 9 0. The pipe portion 8 8 a is opened to the valve hole 1. 〇3 is connected to the main body 95, and the fuel line 8 8 is connected to the carburetor 3 8 and the fuel valve 90 between the pipeline portion 8 8 b will be connected to the valve chamber 1 〇1 and connected To the main body 95. The intake pipe 39 is integrally provided with a mounting bracket 3 9a protruding from the fuel valve 90 side, and a support plate 104 locked to the mounting bracket 3 9 a is The flange portion 9 5 a is integrally provided on the main body 9 5 of the fuel valve 90. That is, the fuel valve 90 is mounted on the intake pipe 39. In the state of being mounted on the intake pipe 39 , Fuel valve 9 0 is on the main The lower side of the frame 1 3 is disposed on the side of the secondary air control valve 4 8, and is disposed on the opposite side of the carburetor 3 8 through the main frame 13. It is used to guide exhaust air to the carburetor 3 8 Exhaust air supply pipe This paper is in accordance with China National Standard (CNS) A4 specification (210X297 mm) (Please read the precautions on the back before filling out this page). Printed by the Employees ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs-12 -558595 A7 ____B7_ V. Description of the invention (1〇) (Please read the notes on the back before filling this page) Road 1 0 5 is located between the air filter 3 7 and the carburetor 3 8 A halfway portion of the exhaust air supply line 105 is provided with an exhaust air filter 10 6 ° disposed above the above-mentioned secondary air filter 79. Next, the function of this embodiment will be described. The secondary air control valve 4 8 for controlling the supply of the secondary air for exhaust to the exhaust hole 4 4 by the engine E that tilts the cylinder axis C 1 forward and is disposed below the main frame 13 is arranged at : The carburetor 38 of the air intake device 40 arranged above the engine E, and the installation An upper portion of the engine E between the starter motor 50, and is disposed between the engine E and the main frame 13. Therefore, the secondary air control valve 4 can be effectively arranged in the space generated between the engine E and the main frame 1 3 that incline the cylinder axis C 1 and between the carburetor 38 and the starter motor 50. 8. Furthermore, since the secondary air control valve 48 is disposed near the engine E, the secondary air supply line 8 6 connected between the secondary air control valve 48 and the exhaust hole 44 of the engine E can be shortened. Into. The secondary air filter 7 9 printed on the secondary air control valve 4 8 is printed on the secondary air control valve 4 8 by the Intellectual Property of the Ministry of Economic Affairs and the Employees ’Consumer Cooperative. It is a center line C 2 that passes through the center of the width direction of the main frame 1 3 The carburetor 3 8 and the secondary air filter 7 9 are arranged on the opposite side of the carburetor 38, and the carburetor 3 8 and the secondary air filter 7 9 are arranged at positions deviating from the width direction of the body frame F. The secondary air filters 79 are efficiently arranged in a narrow space between the engine E and the main frame 13. And because most of the secondary air supply line 86 is arranged through the center line C 2 passing through the widthwise center of the main frame 13, the paper is sized to the Chinese paper standard (CNS) A4 (210X29) * 7 mm) -13- 558595 Printed by the Intellectual Property of the Ministry of Economic Affairs and the Consumers' Co-operative Society A7 B7 V. Invention Description (11) The opposite side of the carburetor 38, so the carburetor 38 and the secondary air can be streamlined The pipeline 8 6 is arranged near the main frame 13 side. In addition, a negative-pressure-operated fuel valve 90 provided in the middle of the fuel supply line 88 of the carburetor 48 is disposed below the main frame 13 to the secondary air control valve 4 The side of 8 is the side of the secondary air control valve 4 8 with the fuel valve 90 placed between the carburetor 38 and the starter motor 50, so the fuel valve 90 can be close to the carburettor. The device 3 8 can shorten the negative pressure extraction line 100 leading the negative pressure from the air intake device 40 to the fuel valve 90. Since the fuel valve 90 is disposed on the opposite side of the carburetor 3 8 via the main frame 13, the pipeline arrangement of the fuel supply line 88 and the negative pressure take-out line 100 can be easily performed. The fuel valve 9 0 is provided in the middle of the fuel supply line 8 8 extending from the fuel tank 25 to the front and downward and connected to the carburetor 3 8, so even if the fuel supply from the fuel tank 25 is stopped, Air is mixed into the fuel supply line 8 8 and the line portion 8 8 b connected between the carburetor 3 8 and the fuel valve 90. When the fuel is supplied later, the line portion 8 8 b is omitted. The pumping operation can also quickly fill the pipe portion 8 8 b with fuel, and the number of parts can be reduced without the need for parts such as an overflow valve for exhausting. The 8 ° fuel valve 90 is installed in the intake pipe 39 of the air intake device 40, so compared with the structure in which the fuel valve 90 is installed in the fuel tank 25, the configuration of the fuel valve 90 can be increased. Degrees of freedom. This paper size applies Chinese National Standard (CNS) A4 specification (210X 297 mm) (Please read the precautions on the back before filling this page) Clothing. Order. D -14-558595 A7 _B7 V. Description of the invention (12)- -----, — 衣 — (Please read the precautions on the back before filling out this page) The above are examples of the present invention. The present invention is not limited to the above embodiments, as long as it does not depart from the patent application Various design changes are possible. [Description of Drawings] Fig. 1 is a side view of a locomotive. Fig. 2 is a left side view of the locomotive near the engine. Fig. 3 is a right side view of the locomotive near the engine. FIG. 4 is an end view of FIG. 2 in a state where the main frame is omitted. Fig. 5 is an enlarged cross-sectional view taken along line 5-5 in Fig. 3; Fig. 6 is an enlarged sectional view taken along line 6-6 in Fig. 2. [Illustration of the drawing number] Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs E: Engine F: Body Frame WF: Front Wheel WR: Rear Wheel 1 1: Front Fork 1 2: Head Tube 1 3: Main Frame 1 4: Rear Frame 15: Steering handlebars 16: Suspension plate 17: Pivot plate The paper size applies to the Chinese National Standard (CNS) A4 specification (210X297 mm) -15- 558595 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (13) 1 8: Stepping foot 2 0: Support shaft 2 1: Rear fork 2 4: Rear fender 2 5: Fuel tank 2 6: Double seat cushion 2 7: Rear suspension unit 3 0 : Car body shell 3 7: Air filter 3 8: Carburetor 3 9: Intake pipe 4 0: Intake device 4 2: Cylinder head 4 4: Exhaust hole 4 6: Muffler 4 8: Secondary air control valve 4 9: crankcase 50 0: starter motor 5 2: diaphragm actuator 5 3: on-off valve 5 4: reed valve 5 5: housing 5 6: diaphragm 5 7: lever (Please read the notes on the back before filling out this page).
Jm 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -16- 558595 A7 B7 五、發明説明（14) 6 0 :負壓室 6 9 :回復彈簧 路 器管 淸給 濾供 氣氣 空空 次次 閥 油 燃 路 管 出 取 室壓 壓負 負： : ο ------·—衣— (請先閱讀背面之注意事項再填寫本頁) — 經濟部智慈財產局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS ) Α4規格（210Χ297公釐） -17-Jm This paper size is in accordance with Chinese National Standard (CNS) A4 specification (210X297 mm) -16- 558595 A7 B7 V. Description of the invention (14) 6 0: Negative pressure chamber 6 9: Return spring circuit tube to supply air to the filter Air, air, air, secondary valve, oil pipe, outlet pressure, negative pressure:: ο ------ · —cloth— (Please read the precautions on the back before filling out this page) — Employees of the Intellectual Property Office of the Ministry of Economic Affairs The paper size printed by the consumer cooperative is applicable to the Chinese National Standard (CNS) A4 specification (210 × 297 mm) -17-